The Mistake Almost Everyone Makes First
Somebody sees a rust streak or a panel that doesn't sit flush anymore, grabs the pressure washer, and blasts it clean. It feels productive. The grime disappears, the door looks better for about a week, and the argument gets settled in favor of "see, it's fine now."
It's not fine. Pressure washing a garage door, especially around seams, weatherstripping, and panel joints, forces water into places it was never meant to go. On a steel door, that trapped moisture sits against bare metal under the paint and keeps rusting from the inside out, where you can't see it. On a wood or wood-composite door, it soaks into the panel core and the swelling gets worse, not better. The fix that looks like cleaning is often the thing that speeds up the damage.
What's Actually Happening to the Door
Steel doors and wood doors fail in humid, rainy climates for different reasons, which is usually where the disagreement starts.
Steel Doors
Steel doors are coated in paint and a thin galvanized layer, but any scratch, ding, or worn weatherstrip seal gives moisture a way in. Once rust starts under the paint, it bubbles the surface, flakes, and spreads outward. The bottom panel is almost always the first to go because it sits closest to standing water, road salt spray, and melting ice.
Wood and Composite Doors
Wood absorbs humidity directly. In a climate with humid summers and big seasonal swings, wood doors expand in wet months and contract when it's dry, and over several years that cycle warps panels, cracks seams, and lets water collect in the low spots. A door that drags on the track in July and closes fine in January isn't broken, it's swollen, and that's a different repair than a misaligned track.
Symptoms Worth Paying Attention To
- Bubbling or flaking paint, especially near the bottom panel or corners
- Orange staining that reappears within days of being wiped off
- A door that's harder to close in summer than in winter
- Soft or spongy spots when you press on a wood panel
- Rust-colored water stains on the garage floor below the door
- Weatherstripping that's cracked, flattened, or pulling away from the door
Real Fixes vs. Band-Aids
Repainting a rust spot without sanding it down first is a band-aid. It covers color, not the rust underneath, and the bubbling comes back within a season. A real fix means grinding or sanding to bare metal, treating it with a rust converter, priming, then painting, or in worse cases replacing the panel entirely.
For wood doors, sealing all six sides of a panel (including edges you can't see once it's hung) matters more than the brand of sealant used. Skipping the edges is the most common reason a "freshly sealed" wood door swells again within a year.
Weatherstripping is the cheapest and most overlooked fix. A worn bottom seal lets rain, melting ice, and salt spray sit directly against the door's lowest panel, which is exactly where most rust and swelling starts. Replacing it costs far less than replacing a panel.
Habits That Actually Help
- Rinse the door with a garden hose, not a pressure washer, to clear off road salt after winter storms
- Check and replace bottom weatherstripping before it cracks, not after
- Touch up small paint chips before they turn into rust bubbles
- Keep gutters and downspouts directing water away from the garage, not onto the door
- In spring storm season, make sure the door seals fully so wind-driven rain doesn't push under it
When to Call La Grange Garage Door
If rust has spread past a small surface spot, if a wood panel feels soft, or if the door only sticks during humid months, that's past the hose-and-patience stage. La Grange Garage Door can assess whether it's a cable & track repair, a weatherstrip and panel fix, or a case where garage door installation makes more sense than continuing to patch a door that's lost structural integrity. We'll tell you honestly which one it is instead of just selling the bigger job.
If you're in La Grange, Buckner, Crestwood, Pewee Valley, Goshen, Prospect, Smithfield, or Shelbyville and you've got a rust spot or a swollen panel that's been the subject of debate at your house, give La Grange Garage Door a call. We'll settle it for you, in person, with a straight answer.